Hi, My G4 Tower 876 (all the drives mentioned have OSX 10.3.9 installed) has not been reliable for the last two weeks. Finally it has been only possible to boot up and use the computer through my external LaCie 160 firewire drive. Thankfully I had used CCC to clone the contents of my original Apple drive just prior to the current problem. I had installed a Seagate 120 gig drive about 6 months ago as a Slave drive dedicated to music and graphics documents. On one of the days recently when both of the internal drives mounted on the desktop and were working, I used CCC and sent a clone of the LaCie drive to the new Seagate drive. I've disconnected the power and the circuit connection to the old internal drive and applied a "jumper" across pins 7&8 on the Seagate to cause it to function as the prime internal drive. I no longer have Application freezes when using the Seagate drive BUT TO USE IT I have to boot using the OS on the External drive and then select the internal hard drive - doing this the applications I use seem to work normallyl. When trying to boot using the Seagate things slow way down as you near the end of the usual loading cycle in the blue screen -- "Waiting for Apple services, etc., takes forever (minutes) before moving to the next thing in line and then the process stops when we reach the window in which you enter your name and password - which in the past and presently on the external drive were/are automatically entered. Using Disc Utility in the Seagate OS I've run "repair permissions" and after selecting the internal drive, using Disc Utility on the external drive, have run "repair the disc" and had a good report. One of the first things I did was to downloaded and run Applejack. I hope I've overlooked something (VERY likely) - I'd appreciate your thoughts and suggestions to help me to get things back to normal. Best, Ray Hardy